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edison: miniboard GPIO mode hook added

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Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
This commit is contained in:
Thomas Ingleby
2014-10-08 18:02:53 +01:00
parent 0cba580ca6
commit 23feec94d0
1 changed files with 49 additions and 1 deletions
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50
src/intel_edison_fab_c.c
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@@ -403,6 +403,54 @@ mraa_intel_edison_gpio_mode_replace(mraa_gpio_context dev, gpio_mode_t mode)
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_edsion_mb_gpio_mode(mraa_gpio_context dev, gpio_mode_t mode)
{
if (dev->value_fp != -1) {
close(dev->value_fp);
dev->value_fp = -1;
}
char filepath[MAX_SIZE];
snprintf(filepath, MAX_SIZE,
SYSFS_PINMODE_PATH "%d/current_pullmode", dev->pin);
int drive = open(filepath, O_WRONLY);
if (drive == -1) {
syslog(LOG_ERR, "Edison: Failed to open drive for writing");
return MRAA_ERROR_INVALID_RESOURCE;
}
char bu[MAX_SIZE];
int length;
switch(mode) {
case MRAA_GPIO_STRONG:
close(drive);
return MRAA_SUCCESS;
case MRAA_GPIO_PULLUP:
length = snprintf(bu, sizeof(bu), "pullup");
break;
case MRAA_GPIO_PULLDOWN:
length = snprintf(bu, sizeof(bu), "pulldown");
break;
case MRAA_GPIO_HIZ:
length = snprintf(bu, sizeof(bu), "nopull");
break;
default:
close(drive);
return MRAA_ERROR_FEATURE_NOT_IMPLEMENTED;
}
if (write(drive, bu, length*sizeof(char)) == -1) {
syslog(LOG_ERR, "Failed to write to drive mode");
close(drive);
return MRAA_ERROR_INVALID_RESOURCE;
}
close(drive);
return MRAA_SUCCESS;
}
mraa_result_t
mraa_intel_edsion_miniboard(mraa_board_t* b)
{
@@ -417,7 +465,7 @@ mraa_intel_edsion_miniboard(mraa_board_t* b)
advance_func->pwm_init_pre = &mraa_intel_edison_pwm_init_pre;
advance_func->i2c_init_pre = &mraa_intel_edison_i2c_init_pre;
advance_func->spi_init_pre = &mraa_intel_edison_spi_init_pre;
// // gpio drie modes
advance_func->gpio_mode_replace = &mraa_intel_edsion_mb_gpio_mode;
int pos = 0;
strncpy(b->pins[pos].name, "J17-1", 8);